Soft and Chewy Monster Cookies Recipe

Soft and Chewy Monster There’s something undeniably nostalgic about a batch of Cookies—the perfect blend of peanut butter, oats, chocolate chips, and colorful mini M&Ms. These cookies are chewy, soft, and packed with sweet, chocolatey goodness in every bite. Whether you’re making them for your kids, a bake sale, or just to satisfy your own sweet tooth, this recipe is a guaranteed crowd-pleaser!

The best part? No flour required! That means they’re naturally gluten-free (just make sure to use certified gluten-free oats). Plus, they stay soft for days, making them an excellent make-ahead treat.

So, let’s get baking! And if you love recipes like this, be sure to subscribe to my email list so you never miss a delicious homemade dessert.

Why You’ll Love These Monster Cookies

• Soft, Chewy & Loaded with Goodies – The combination of oats, peanut butter, chocolate chips, and M&Ms creates a wonderfully chewy texture with little pockets of melty chocolate.
• Naturally Gluten-Free – No flour here! Just make sure to use gluten-free oats if needed.
• Easy One-Bowl Recipe – Fewer dishes mean more time to enjoy your cookies!
• Perfect for Any Occasion – Great for lunchboxes, cookie swaps, parties, or just an everyday treat.

What Do Monster Cookies Taste Like?

If peanut butter cookies, oatmeal cookies, and chocolate chip cookies had a baby, it would be this cookie! They have a soft, slightly chewy texture from the oats, a rich peanut butter flavor, and just the right amount of sweetness from the chocolate chips and M&Ms. The colorful candies add a little crunch and a pop of fun to every bite!

Monster Cookies Ingredients

Here’s everything you’ll need to make these irresistibly chewy cookies:

• 1 cup sugar – Adds sweetness and helps create a slightly crisp exterior.
• 1 cup packed light brown sugar – Adds moisture and a hint of caramel flavor.
• 1/2 cup butter (softened) – Gives the cookies a rich, buttery flavor and keeps them soft.
• 3 large eggs – Helps bind everything together and adds moisture.
• 1 1/2 cups peanut butter – The star of the show! Use creamy for a smoother texture or crunchy for extra bite.
• 1 Tablespoon vanilla extract – Enhances all the flavors.
• 2 teaspoons baking soda – Helps the cookies puff up and stay soft.
• 1/2 teaspoon salt – Balances the sweetness.
• 4 1/2 cups oats (quick oats) – Provides a chewy texture and structure to the cookies.
• 3/4 cup mini M&Ms – Adds color and crunch.
• 3/4 cup mini chocolate chips – Because you can never have too much chocolate!

Tools You’ll Need

• Large mixing bowl
• Hand or stand mixer
• Baking sheet
• Parchment paper or silicone baking mat
• Cookie scoop (for evenly sized cookies)
• Cooling rack

How to Make Monster Cookies

1: Preheat Your Oven

Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat.

2: Cream the Butter and Sugars

In a large mixing bowl, beat together the sugar, brown sugar, and softened butter until light and fluffy. This step helps create a soft and chewy texture.

3: Add the Eggs and Peanut Butter

Beat in the eggs, one at a time, making sure each is fully mixed in before adding the next. Then, add the peanut butter, vanilla extract, baking soda, and salt, and mix until well combined.

4: Stir in the Oats

Using a spatula or wooden spoon, gently fold in the quick oats until they are fully incorporated into the dough.

5: Add the M&Ms and Chocolate Chips

Carefully mix in the mini M&Ms and mini chocolate chips. Be gentle so you don’t crush the candies!

6: Form the Cookies

Use a cookie scoop or heaping tablespoon to drop portions of dough onto your prepared baking sheet. The dough will be thick, so don’t worry if it seems dense!

7: Bake to Perfection

Bake at 350°F for about 10 minutes, or until the cookies are lightly golden brown around the edges.

8: Add Extra M&Ms (Optional, but Fun!)

As soon as the cookies come out of the oven, gently press a few extra mini M&Ms onto the tops while they’re still warm. It makes them look extra festive and fun!

9: Cool & Enjoy!

Let the cookies cool on the baking sheet for about 5 minutes, then transfer them to a wire rack to cool completely.

What to Serve with Monster Cookies

These cookies are perfect on their own, but if you want to take them to the next level, try serving them with:

• A cold glass of milk – Classic and perfect for dunking!
• Vanilla ice cream – Make a monster cookie ice cream sandwich!
• A cup of coffee or hot chocolate – A warm, cozy pairing.

Tips for the Best Monster Cookies

Use quick oats, not old-fashioned oats – Quick oats give the cookies a softer texture, while old-fashioned oats can make them too chewy.
Don’t overbake – The cookies will look slightly underdone in the center when you take them out, but they’ll firm up as they cool.
Use room-temperature ingredients – This helps everything mix together evenly.
Customize them – Try swapping the M&Ms for Reese’s Pieces, white chocolate chips, or even chopped nuts!

How to Store Monster Cookies

Room Temperature: Store in an airtight container for up to 1 week.
Refrigerator: They’ll stay fresh for about 2 weeks in the fridge.
Freezer: Freeze in a single layer, then transfer to a freezer bag for up to 3 months. Just let them thaw at room temp before enjoying!

Frequently Asked Questions

Can I use crunchy peanut butter?
Yes! It adds a little extra texture, which some people love.

Can I make these without peanut butter?
You can try using almond butter or sunflower seed butter, but it will slightly change the flavor and texture.

Why are my cookies falling apart?
These cookies don’t have flour, so they can be more delicate. Let them cool completely before moving them to avoid crumbling.

Can I make these smaller or bigger?
Yes! Just adjust the baking time accordingly—smaller cookies may need 8 minutes, while larger cookies might need 12-14 minutes.

Final Thoughts: The Perfect Anytime Cookie

These Monster Cookies are an easy, fun, and delicious treat that’s perfect for any occasion. They’re soft, chewy, and packed with peanut butter and chocolate goodness. Whether you’re baking for a party, a lunchbox treat, or just because—you can’t go wrong with these colorful, fun cookies!

If you try this recipe, I’d love to hear how they turned out! Leave a comment below or share a photo on Pinterest. And don’t forget to subscribe for more delicious recipes straight to your inbox!

4-Ingredient Heath Toffee Cookies – A sweet and crunchy treat that’s ready in no time!

Fruity Pebbles Cookies – Fun, colorful, and perfect for dessert lovers.

TikTok Baked Feta Pasta

TikTok Potato Bake

Print